This is a website that I stumbled across. AK-47 (7.63x39)
That link will bring you right to the AK magazine page. On the site it will tell you if they are pre-ban or not. At the very least they will let you pick up rebuild kits if you would like to pin them. Another website that has some AK accessories is https://www.primaryarms.com/AK_47_STORE_s/488.htm.